norton scans twice

Windows XP SP3

Hi I renew in November s.

Norton just started scanning my PC on the scheduled day full scan  with the old format (the yellow info. box) OK

and then as soon as that one has finished a full new scan gets done with the (black info box)

I'm getting 2 full scans done one right after the other. Whats up ???

Anything I try to read is usually over my head and I only understand half . And then can never find it again.

Also I'm losing programs Icons off the task bar. Still in my add or remove programs, but will not let me in.

Someone Please Help....... :)